206 | | You should NEVER see nan's in imagelinker or ossimplanet. A "nan" is "Not A Number". There is a test application ossim-height to test your elevation. Usage is ossim-height <latitude> <longitude>. Example:[[BR]] |
207 | | |
208 | | {{{ |
209 | | $ ossim-height 27.84 -80.48 |
210 | | Opened cell: /data/image_formats/elevation/srtm/1arc/N27W081.hgt |
211 | | Geoid offset: -27.9172 |
212 | | Height above MSL: 11 |
213 | | Height above ellipsoid: -16.9172 |
214 | | |
| 206 | You should NEVER see nan's in imagelinker or ossimplanet. A "nan" is "Not A Number". To test the elevation use ossim-info --height. Usage is ossim-info --height <latitude> <longitude>. Example:[[BR]] |
| 207 | |
| 208 | {{{ |
| 209 | ossim-info --height 27.84 -80.48 |
| 210 | Opened cell: /data2/elevation/srtm/1arc/N27W081.hgt |
| 211 | MSL to ellipsoid delta: -29.5178591613769 |
| 212 | Height above MSL: 11.0000000000573 |
| 213 | Height above ellipsoid: -18.5178591613196 |
| 214 | Geoid value: -27.9172229766846 |